The zoom is pretty good, to a point. With only 3x Optical and 5x digital, you're not getting a telephoto. There are add on lenses available. Oly has a 1.7 for the bare camera. So far, my zoom shots have been fine. With 8mp, you can make poster size pictures and the detail is pretty good. Underwater, there are very few days in California that you can take a picture beyond about 10feet. So far my UW wide shots have been plagued by backscatter. I hope to cure this when my strobe arrives. I understand adding an Inon or Epoque wide angle wet lens or a dome lens helps get the big picture from less distance. In tropical water, I'm sure you'll do pretty well regardless. I've seen natural light pictures using the "magic filter" that have amazing detail from pretty fair distance if you're shooting above 15 meters. As far as distance, my only real dissappointment with this camera is lens distortion with the small lens. If you're shooting with buildings at the edge of your shot, you'll get some lean. There are some post-editing programs with built-in lens correction factors, but I think they're mostly for the DSLR crowd. I like being able to carry a small 1+ lb. camera that fits in one hand when I'm underwater. I've dived with people who have the $5000.00 dual strobe SLR set-ups, and they're more photog than diver. I know one who has run out of air and been rescued by at least 4 people so far by being too wrapped up in camera eqpt. to check the gauges.